Separable fastener.



E. N. HUMPHREY.

SEPARABLE FASTENER'.

APPLICATION FILED MAR. 27. 1915.

1,156,008. Patented Oct. 5, 1915.

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ERNEST N. HUMPHREY, OF NEW BIEt IIITAIN, CONNECTICUT, ASSIGNOR TO THETRAUT &

HINE MANUFACTURING COMPANY, OF NEW BRITAIN, CONNECTICUT, A CORPORA- TIONOF CONNECTICUT.

To all whomit may concern.

Be it known that I, ERNEST N. HUMrHREY, a citizen of the United States,residing at New Britain, county of Hartford, State of Connecticut, haveinvented certain new and useful Improvements in separable Fasteners, ofwhich the following is a full, clear, and exact description.

This invention relates to separable fasteners of the cast-off type usedin the suspender construction. Such'afastener is designed topermit thestrap and cord to be readily attached and detached, when the inventionis embodied in suspenders of standard construction. A preferableembodiment of the invention in a cast-ofi of this character is describedin detail in the following specification and taken in connection withthe accompanying drawings.

In these drawings: Figure 1 is a view in.

front elevation of a suspender cast-01f constructed in accordance withthe present 1nvention. Fig. 2 is a similar View but with.

the parts separated. Fig. 3 is a vertical sectional view on the line 3-3of Fig. 1. Figs. 4: and 5 show the separate parts of one form ofcast-0E.

Referring to the drawings by numerals, 1 indicates the front end of asuspender shoulder strap, the lower end of this strap running through aslotted plate 2 forming one of the two separable members of thecast-off. This plate is provided with a downward extension 3 havmg aslot 4 therein, the width of this slot being restricted fromintermediate its ends to the lower end, so that in generalconfiguration, it-is suggestive of a key-hole. At the point where therestriction begins, the face of the plate 3 is formed with oppositelydisposed raised abutment members 5, these being positioned at oppositesides of the slot. The outer separable part in this case comprises thecord guide member with attaching means. This other part is preferablyformed as follows: I provide a strip of sheet metal bent to form a cordguide 6, the sides of said cord guide at its upper end being joined asat 7. This upper end carries rigidly a stud 8 projecting outwardlytherefrom at substantially right angles and having a head 9 atits outerend. This head is of a diameter to permit its insertion through thelarge end of the slot 4, its shank being sufficiently small to extendwithin the restricted portion of the slot, but

Specification of Letters Patent.

Application filed March 27, 1915, Serial No. 17,315.

' sErARA'BLE FASTENER.

Pz'ttented 0013.5, 1915.

its head beingof too great diameter to pass between theraised abutment5, although it may pass over and beyond the same and rest therebelowwith the shank resting substantially at the restricted end of the slot.I inter-pose a. spring between the cord guide and the slotted plate. Thespring normally tends to hold the head of the stud against the plate andin line with the raised abutments 5 The spring, however, may yield underas pressure to enablethe head of the stud to pass over the abutments 5,from one end of the slot to the other, thus permitting the stud to beinserted and removed. This spring is preferably. formed separate fromthe cord guide, as this enables heavier stock to be used for the cordguide, a light spring stock being difficult-to bend into a cord guidewithout breaking. Therefore, I provide a U-shaped leaf spring 10, oneend of which is rigidly secured to the upper end of the cord guide whenthe stud 8 is fixed thereto, preferably the end of the stud beingriveted over the attached spring clip. The opposite arm of the spring isprovided with an aperture through which the rear end of the stud 8 isinserted before riveting. This aperture is sufiicient to allow thespring arm to move backand forth upon the shank of the stud. The actionof the spring is to normally extend the cord guide rearwardly and,therefore, move the head 9 of the stud rearwardly. Consequently, as willbe seen from Fig. 2

of the drawings, when the head of the stud is inserted in the enlargedend of the'slot 4 and moved downwardly, its under face will engage theraised abutments 5. As the stud is moved still farther downwardly, thespring 10 will be compressed permitting the stud to pass over theabutments to the position below the abutments shown in Fig. 2. In thisposition the parts are detachably interlocked, as the head of the studlies in line with the abutment and may not pass upwardly thereoverexcept the spring 10 be compressed by hand and the stud intentionallymoved. The pressure of this spring is amply suflicient under ordinary.circumstances to prevent accidental unlocking.

What I claim, therefore, and desire to secure by Letters Patent is: j Y

1. In combination, two separable parts, one comprising a plate having akey-hole slot therein, an abutment on said plate at each side of saidslot, and adjacent to the middle portion thereof, the other membercomprising a plate shaped to form a curved tubular bearing at its lowerend, a stud rigidly connected to the upper end thereof, the diameter ofthe stud head being greater than the narrower portion of the key-holeslot and sufficiently great to engage the abutments at opposite sidesthereof, and a spring located between said stud head and the upper partof the second member to which the stud is attached, said springoperating to draw the back of the stud head against the front face ofthe first member when said parts are attached.

2. In combination, two separable parts, one comprising a plate having akey-hole slot therein, an abutment on said plate at each side of saidslot, and adjacent to the middle portion thereof, the other membercomprising a plate shaped to form a curved tubular bearing at its lowerend, a stud rigidly connected to the upper end thereof, the diameter ofthe stud head being greater than the narrower portion of the key-holeslot and sufliciently great to engage the abutments at opposite sidesthereof, and a spring located between said stud head and the upper partof the second member to which the stud is attached, said springoperating to draw the back of the stud head against the front face ofthe first member when said parts are attached, said spring stud andsecond mentioned plate being rigidly united at a common point.

8. In combination, two separable parts, one comprising a plate having akey-hole slot therein, an abutment on said plate at each side of saidslot and adjacent the middle portion thereof, the other membercomprising a plate shaped to form a curved cord hearing at its lowerend, a stud rigidly connected to the upper part thereof and projectingforwardly therefrom, the diameter of the stud head being greater thanthe narrower portion of the key-hole slot, and a spring located betweenthe stud head and that part of the second member to which the stud isattached, said first mentioned plate being arranged to occupy the spacebetween said spring and said stud head when the parts are assembled,said abutments offering resistance to the attachment and detachment ofsaid separable parts.

ERNEST N. HUMPHREY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents Washington, D. C.

